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Income Taxes- Future Income Taxes (Recovery) (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Income Taxes Future Recovery Disclosure [Line Items] |  |
Future tax assets gross | $ 38,622 | $ 33,953
Less: valuation allowance | (38,596) | (33,927)
Net future tax assets | 26 | 26
SR&ED expenditures [Member] |  |
Income Taxes Future Recovery Disclosure [Line Items] |  |
Future tax assets gross | 2,086 | 2,086
Non refundable Investment Tax Credits [Member] |  |
Income Taxes Future Recovery Disclosure [Line Items] |  |
Future tax assets gross | 421 | 700
Share Issue Costs [Member] |  |
Income Taxes Future Recovery Disclosure [Line Items] |  |
Future tax assets gross | 62 | 77
Income Tax Loss Carry forwards [Member] |  |
Income Taxes Future Recovery Disclosure [Line Items] |  |
Future tax assets gross | 34,948 | 30,007
Fixed and intangible assets [Member] |  |
Income Taxes Future Recovery Disclosure [Line Items] |  |
Future tax assets gross | 1,083 | 1,083
Reserves [Member] |  |
Income Taxes Future Recovery Disclosure [Line Items] |  |
Future tax assets gross | $ 22 | $ 0

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